﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace 深入浅出WPF_BookDemo.Views
{
    /// <summary>
    /// Chapter07Window.xaml 的交互逻辑
    /// </summary>
    public partial class Chapter07Window : Window
    {
        Student stu;

        public Chapter07Window()
        {
            InitializeComponent();
            stu = new Student();
            //Binding binding = new Binding("Text") { Source = textbox1 };
            //BindingOperations.SetBinding(stu, Student.NameProperty, binding);
            //textbox2.SetBinding(TextBox.TextProperty, binding);

            stu.SetBinding(Student.NameProperty, new Binding("Text") { Source = textbox1 });
            textbox2.SetBinding(TextBox.TextProperty, new Binding("Name") { Source = stu });
        }

        public class Student : DependencyObject
        {
            public static readonly DependencyProperty NameProperty =
                DependencyProperty.Register("Name", typeof(string), typeof(Student));

            public string Name
            {
                get { return (string)GetValue(NameProperty); }
                set { SetValue(NameProperty, value); }
            }

            public BindingExpressionBase SetBinding(DependencyProperty dp, BindingBase binding)
            {
                return BindingOperations.SetBinding(this, NameProperty, binding);
            }

        }

        public class School : DependencyObject
        {


            public static int GetGrade(DependencyObject obj)
            {
                return (int)obj.GetValue(GradeProperty);
            }

            public static void SetGrade(DependencyObject obj, int value)
            {
                obj.SetValue(GradeProperty, value);
            }

            // Using a DependencyProperty as the backing store for Grade.  This enables animation, styling, binding, etc...
            public static readonly DependencyProperty GradeProperty =
                DependencyProperty.RegisterAttached("Grade", typeof(int), typeof(School), new PropertyMetadata(0));


        }

        class Human : DependencyObject
        {

        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            //MessageBox.Show(stu.GetValue(Student.NameProperty).ToString());
            Student student = new Student();
            student.Name = textbox1.Text;
            this.textbox2.Text = student.Name;
        }

        private void Button_Click_1(object sender, RoutedEventArgs e)
        {
            Human human = new Human();
            School.SetGrade(human, 6);
            int grade = School.GetGrade(human);
            MessageBox.Show(grade.ToString());
        }
    }
}
